Some streets will be pedestrianised for the occasion of "an extraordinary and immersive nocturnal art exhibition of light and sound," organisers said. St James's Churchyard in Piccadilly will host an installation entitled "My Light is Your Light" - a tribute to Syrian refugees created by Alaa Minawi, who worked for three years as an interpreter for refugees.
On the South Bank of the River Thames, visitors will see images of dancers projected onto a dance studio and a series of 40 glowing gates along the waterfront.